import java.util.Scanner;

public class Demo03 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        int n=scanner.nextInt();
        for(int i=1;i<=n;i++){
            for(int j=1;j<=n;j++){
                if(i==j||(i+j-1)==n){
                    System.out.print("*");
                }else {
                    System.out.print(" ");
                }
            }
            System.out.print("\n");
        }
    }
}
